First, you only need the variable friend. You can default this to John.
*create friend “John”
Later this can be changed.
What is your friends name?
*choice
#John
Your friend is called ${friend}.
*goto friend_name_set
#Bob
*set friend "Bob"
Your friend is called ${friend}.
*goto friend_name_set
#Pete
*set friend "Pete"
Your friend is called ${friend}.
*label friend_name_set
Now, onto the part you want. I would code it like this:
You pull out a
*if friend = "John"
gun
*goto point
feather
*label point
and point it at him.